Home / 7,320.24-10,981.28-2,388.12

Finding the Fourth Proportional to 7,320.24, 10,981.28 and 2,388.12

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Solution

The fourth proportional to 7,320.24, 10,981.28 and 2,388.12 is: 3,582.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,320.24 : 10,981.28 = 2,388.12 : x
  2. Step 2: Convert to fraction form
    7,320.24/10,981.28 = 2,388.12/x
  3. Step 3: Cross multiply
    7,320.24x = 10,981.28 × 2,388.12
  4. Step 4: Simplify right side
    7,320.24x = 26,224,614.39
  5. Step 5: Solve for x
    x = 26,224,614.39/7,320.24
  6. Step 6: Final answer
    x = 3,582.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.